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Accumulated Other Comprehensive Income
12 Months Ended
Dec. 31, 2021
Accumulated Other Comprehensive Income Loss Net of Tax [Abstract]  
Accumulated Other Comprehensive Income

12. Accumulated Other Comprehensive Income

The change in accumulated other comprehensive income, which is reported as a component of stockholders’ equity, for the year ended December 31, 2021 is summarized below:

Unrealized

Gain on

    

Marketable

Securities

Balance December 31, 2020

$

3

Other comprehensive income

(3)

Balance December 31, 2021

$